OHN-B1000-4DB-1000 DIGITAL STATION

User Manual 09-05-0002-00 DB-1000 Digital Station 406-470 MHz 25 watts DIGITAL WIRELESS CORPORATION FCC Interference Warning The FCC requires that manuals pertaining to Class A and Class B computing devices must contain warnings about possible interference with local residential radio and TV reception. This warning reads as follows: Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. NOTE: The manufacturer is not responsible for any radio or TV interference caused by unauthorized modifications to this equipment. Such modifications could void the user’s authority to operate the equipment. This product has been tested and complies with the specifications for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used according to the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which is found by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: Reorient or relocate the receiving antenna Increase the separation between the equipment or devices Connect the equipment to an outlet other than the receiver’s Consult a dealer or an experienced radio/TV technician for assistance Computer Software Copyrights The product described in this Instruction Manual includes copyrighted Digital Wireless Corporation computer programs stored in semiconductor memory or other storage media. Laws in the United States and other countries preserve for Digital Wireless Corporation certain exclusive rights for copyrighted computer programs, including the exclusive right to copy or reproduce in any form the copyrighted computer program. Accordingly, any copyrighted computer programs contained in the product described in this Instruction Manual may not be copied or reproduced in any manner without the express written consent of Digital Wireless Corporation, a Delaware corporation. The purchase of the product described in this Instruction Manual shall not be deemed to grant either directly or by implication, estoppel or otherwise, any license under the copyrights, patents or patent applications of Digital Wireless Corporation, except for the normal non-exclusive, royalty free license to use that arises by operation of law in the sale of a product. Modifications Any modifications or changes to the circuitry or settings not approved by Digital Wireless Corporation could void the user’s authority to operate this product. Digital Wireless Corporation 696 Moulton Avenue, Unit E Los Angeles, California 90031 United States of America Tel +1 (323) 276-5300 www.digitalwireless.com In Canada: Digital Wireless Canada 1425 Chartwell Drive West Vancouver, B.C. Canada V7S 2R7 The product described in this Instruction Manual was manufactured in the United States of America. This document is copyrighted as of March 1, 2006. i2way is a registered trademark of Digital Wireless Corporation. Publication PN 09-05-0002-00 (c) 2006 Digital Wireless CorporationPage iii Version -03 04 MAY 06 File: Base Station Manual.lwp 1 General Overview The DM-1000-4 Digital Station is a narrowband repeater specifically designed for DV/IP format digital transmissions used on the i2way Network. The station receives i2way Network signals on one frequency, decodes, processes, reformats the data, and rebroadcasts it on another frequency. i2way Network signals contain call control information, streaming digital voice and customer payload data. i2way format stations do not respond to or repeat analog transmissions, or any other form of digital transmission. The DM-1000 Digital Station is available in various models that cover the 138-520 MHz bands. The station receives and transmits data at 10,000 bps using four level frequency shift keying (“4FSK”) in 12.5 kHz channels. The station’s construction is modular, and may be field repaired by simply replacing plug-in modules. It may be configured in single channel “conventional” or multi-channel “trunked” modes. Multi-channel systems are typically trunked, with one channel operating as the “control channel” and the remaining channels as “transaction channels”. This manual details the version for 12.5 kHz spaced channels in the 406-470 MHz bands. This station may be used in government and international service down to 380 MHz. 2 Installation The DB-1000 station is designed to be installed indoors, typically in an electronic equipment rack. DWC manufactures equipment cabinets specifically for this purpose although a large number of commercially available “rack cabinets” are suitable. The station may also be installed in a specifically-designed “outdoor” cabinet intended for the housing of sensitive electronic equipment. A trained technician should perform the installation. 2.1 Unpacking after Shipment Receipt The station is normally shipped in a cardboard carton protected by foam. The unit is ready-to-operate, and generally the only included accessories not attached are the power cord and rack-mounting brackets. If the rear panel power switch is protected by tape or other method, remove this before operating. Do not apply DB-1000 Station - Instruction Manual Publication PN 09-05-0002-01 (c) 2006 Digital Wireless CorporationPage 1 Version -03 04 MAY 06 File: Base Station Manual.lwp power to the station unless a suitable antenna or load is connected to the transmitter output. 2.2 Mounting The station is intended to be installed in a standard EIA “19 inch” rack. The station is “one rack unit” high (or about 1.75 inches), and requi…

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May 10, 2006: Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 Gentlemen: Reference:OHN-B1000-4 UHF Digital Station This equipment meets the requirements of the FCC Rules, Parts 90.203(e) and (g), as applicable. Programming of this product’s transmit frequencies can be performed ONLY by the manufacturer or by authorized service or maintenance personnel. The operator cannot program transmit frequencies using the equipment’s external operation controls. Sincerely. Digital Wireless Corporation Brent C. Jaybush President 1 696 Moulton Avenue, Unit E Los Angeles, California 90031 USA Brent Jaybush President & Chief Executive Officer Direct Line: (323) 276-5311 [email protected] www.digitalwireless.com www.i2way.com DIGITAL WIRELESS CORPORATION

February 22, 2006 Federal Communications Commission Equipment Authorization Division Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21045 Reference: FCC ID: OHN-B1000-4 Subject: Letter requesting indefinite confidentiality of DB1000-4 digital station FCC certification application Ladies and Gentlemen: Pursuant to CFR 47 §§ 0.457, 0.459, Digital Wireless Corporation (DWC) requests that the following identified detailed technical information regarding the DB-1000-4 station be withheld from public inspection indefinitely. 1. Product is expected to be a key component of the nation’s critical infrastructure DWC has developed this product specifically as a result of a 2004 contract with the National Rural Telecommunications Cooperative (NRTC), a non-profit cooperative owned by approximately 1,200 rural electric and rural telephone utilities. The product will become an integral part of NRTC’s interoperable nationwide dispatch radio communications network for the nation’s rural cooperative electric utilities. NRTC member cooperative utilities operate approximately 48% of the nation’s critical electric distribution infrastructure. DWC and NRTC desire to keep the technical details of this rural cooperative radio network, known as the “i2way Network”, and the FCC-certified components that comprise the network, such as the subject station, confidential as an important measure in securing the nation’s critical infrastructure. If the disclosure of such information is made public, which could include access by individuals or organizations seeking to harm the nation’s critical infrastructure, it may cause serious harm to NRTC, DWC, NRTC member 1 696 Moulton Avenue, Unit E Los Angeles, California 90031 USA Brent Jaybush President & CEO www.digitalwireless.com www.i2way.com DIGITAL WIRELESS CORPORATION utilities employing the i2way Network, or the public in areas served by these utilities. 2. Proprietary Confidential Property DWC does not disclose proprietary confidential information about its products to any third parties and as such we request that the FCC does the same and forward the confidentiality acceptance letter to DWC. Our FCC submissions are considered proprietary confidential information. Pursuant to CFR 47 Chapter 1 §§ 0.457(d) and 0.457(d)(2)(i) the exhibits contain details of trade secrets and technical data that is customarily guarded from competitors and not released to the public by DWC. The specific parts of the Exhibits indicated in this letter are considered confidential by DWC and as such should be prevented from disclosure to the public and competitors. DWC has taken necessary measures to have limited access to confidential documents only to DWC internal employees on a need-to-know basis, and have signed confidentiality agreement with employees and NRTC. If the disclosure of such information is made public, it will cause serious competitive harm to DWC. Previously, none of the requested confidential Exhibits have been disclosed to third parties by DWC. The following Exhibits with specific sections described, submitted with the Form 731 Attachments should be held confidential: yExhibit Block DiagramCFR 47 §2.983(d)(6), §2.983(d)(7) Attachment: “Block Diagram” yExhibit SchematicsCFR 47 §2.983(d)(7) Attachment: “Base Station Motherboard”; “Base Station Logic Board”; “Base Station TX 220 MHz UHF”; “Base Station Receiver Board 220 Mhz”; 2 yExhibit Parts ListCFR 47 §2.983(d)(6) - Attachment: “Transmitter Active Components” Modulation generation methods and circuits. yExhibit Theory of OperationCFR 47 §2.983(d)(10) Attachment: “Theory of Operation” Yours sincerely, Digital Wireless Corporation Brent C. Jaybush President & CEO 3

4.00" 1.40" Note: A is alternative location for Part 15 certification label. FCC ID = OHN-B1000-4 IC ID= 3338B-B1000-4 Model = DB-1000-4 FCC & Industry Canada Identification Label 3.50" 1.40" A

3.2 Adjustments The Station’s adjustments and programming are password protected, and are available only to the factory and factory-trained maintenance personnel. Authorized, factory-trained personnel should consult the maintenance manual for the Station for further information. 3.3 Normal Repeater Operation When the unit is placed in normal service, no user intervention is required. The ID number of the incoming mobile/portable transmission is displayed on the front panel LCD display. The RX and TX LED indicators will light, indicating the unit is transmitting. The RF Power Amplifier cooling fan will turn on when the station transmits. Caution: The DB-1000 Station should never be operated without an antenna or 50 ohm test load attached. 3.4 Automatic Station ID The DV/IP Base Station has a built-in automatic Morse Code generator that may be programmed to periodically transmit the assigned call sign of the base station with a frequency modulated carrier wave, if required or desired. The MCW audio frequency is 1,350 Hz. Consult the factory for programming information. 4 Maintenance and Repair 4.1 General There are no user-servicable components in the station. There are no manual adjustments or alignment controls. The station has hazardous voltages present inside. Testing, installation and repair must be performed by qualified technicians trained in the handling of this equipment. Severe, potentially lethal electric shock can occur from contact with the AC input terminals, power supply connector or AC fuse, accessible when the top cover is removed. Therefore, the top cover should only be removed by experienced and qualified technicians DB-1000 Station - Instruction Manual Publication PN 09-05-0002-01 (c) 2006 Digital Wireless CorporationPage 7 Version -03 04 MAY 06 File: Base Station Manual.lwp trained in the handling of this equipment and only when the AC mains power cord is removed. CONTACT THE FACTORY FOR MAINTENANCE, REPAIR AND WARRANTY INFORMATION. 4.2 User Routine Maintenance 4.2.1 Quarterly yDust should be removed from the air filters. This may be performed by removing the two left hand front panel fans, and the power supply mounting bracket, in order to remove and clean or replacing the fan filters. Alternatively, the air filters may be cleaned with a strong vacuum cleaner, by applying the vacuum cleaner’s hose over the air intakes and removing built up dust and residue. yThe station should be “keyed” (placed into transmit mode) and all fans observed for normal operation. Replace any fans that may have failed. yUsing a DV/IP compatible mobile or portable radio (“the test radio”), place the test radio into “ECHO” mode and “TECHNICIAN” display mode, and make several ten second voice transmissions through the station from a location where normal or better coverage is routinely experienced. The test may be performed at the station’s installation (tower) location. Observe the two frame error readings on the front panel of the test radio. Typically 1 or less frame errors should be observed. If an unusually high number of errors are observed, contact your factory authorized service person or the factory. 4.2.2 Annually yThe transmitter frequency and power output should be checked by a factory trained service technician using service procedures recommended by the factory. yThe receiver temperature controlled crystal oscillator should be checked by a factory trained service technician using service procedures recommended by the factory. DB-1000 Station - Instruction Manual Publication PN 09-05-0002-01 (c) 2006 Digital Wireless CorporationPage 8 Version -03 04 MAY 06 File: Base Station Manual.lwp yAdditional tests should be performed as recommended by the factory by a factory trained service technician using service procedures recommended by the factory. -END- DB-1000 Station - Instruction Manual Publication PN 09-05-0002-01 (c) 2006 Digital Wireless CorporationPage 9 Version -03 04 MAY 06 File: Base Station Manual.lwp

Flom Test Labs 3356 N. San Marcos Place, Suite 107 Chandler, Arizona 85225-7176 FCC ID: OHN-B1000-2 (480) 926-3100 phone, fax (480) 926-3598 MFA p0630002, d0640029 Date: April 28, 2006 Federal Communications Commission Via: Electronic Filing Attention: Authorization & Evaluation Division Applicant: Digital Wireless Corporation Equipment: DB-1000-4 Digital Station FCC ID: OHN-B1000-4 FCC Rules: Radiofrequency Radiation Exposure Limits 47 CFR 1.1310 MPE - Mobiles Fixed Based Station X Gentlemen: On behalf of the Applicant, enclosed please find the Supplemental Test Data Report, the whole for Environmental Assessment (MPE) of the referenced equipment as shown. We trust the same is in order. Should you need any further information, kindly contact the writer who is authorized to act as agent. Sincerely yours, David E. Lee, FCC/IC Compliance Manager enclosure(s) cc: Applicant DEL/del Flom Test Labs 3356 N. San Marcos Place, Suite 107 Chandler, Arizona 85225-7176 FCC ID: OHN-B1000-2 (480) 926-3100 phone, fax (480) 926-3598 MFA p0630002, d0640029 Environmental Assessment for Mobiles/Fixed Base Station for FCC ID: OHN-B1000-4 Model:DB-1000-4 Digital Station to Federal Communications Commission 47 CFR 1.1310 (MPE) Radiofrequency Radiation Exposure Limits Date Of Report: April 28, 2006 On the Behalf of the Applicant: Digital Wireless Corporation At the Request of: Digital Wireless Corporation 696 Moulton Ave, Unit E Los Angeles, CA 90031 Attention of: Brent Jaybush 323-276-5311 Email: [email protected] Supervised By: David E. Lee, FCC/IC Compliance Manager Flom Test Labs 3356 N. San Marcos Place, Suite 107 Chandler, Arizona 85225-7176 FCC ID: OHN-B1000-2 (480) 926-3100 phone, fax (480) 926-3598 MFA p0630002, d0640029 Table of Contents Rule Description Page . Test Report 1 . Identification of the Equipment Under Test 2 . Standard Test Conditions and Engineering Practices 3 Flom Test Labs 3356 N. San Marcos Place, Suite 107 Page 1 of 4 Chandler, Arizona 85225-7176 FCC ID: OHN-B1000-4 (480) 926-3100 phone, fax (480) 926-3598 MFA p0630002, d0640029 Required information per ISO/IEC Guide 25-1990, paragraph 13.2: a) Test Report (Supplemental) b) Laboratory: (FCC: 31040/SIT) (Canada: IC 2044) M. Flom Associates, Inc. 3356 N. San Marcos Place, Suite 107 Chandler, AZ 85225 c) Report Number: d0580029 d) Client: Digital Wireless Corporation 696 Moulton Ave, Unit E Los Angeles, CA 90031 e) Identification: DB-1000-4 Digital Station FCC ID: OHN-B1000-4 Description: A narrowband repeater specifically designed for DV/IP format digital transmissions used on the i2way network. f) EUT Condition: Not required unless specified in individual tests. g) Report Date: April 28, 2006 EUT Received: March 1, 2006 h, j, k): As indicated in individual tests. i) Sampling method: No sampling procedure used. l) Uncertainty: In accordance with MFA internal quality manual. m) Supervised by: David E. Lee, FCC/IC Compliance Manager n) Results: The results presented in this report relate only to the item tested. o) Reproduction: This report must not be reproduced, except in full, without written permission from this laboratory. Flom Test Labs 3356 N. San Marcos Place, Suite 107 Page 2 of 4 Chandler, Arizona 85225-7176 FCC ID: OHN-B1000-4 (480) 926-3100 phone, fax (480) 926-3598 MFA p0630002, d0640029 Identification of the Equipment Under Test (EUT) Name and Address of Applicant: Digital Wireless Corporation 696 Moulton Ave, Unit E Los Angeles, CA 90031 Manufacturer: Digital Wireless Corporation 696 Moulton Ave, Unit E Los Angeles, CA 90031 FCC ID: OHN-B1000-4 Model Number: DB-1000-4 Digital Station Description: A narrowband repeater specifically designed for DV/IP format digital transmissions used on the i2way network. Type of Emission: 10K7F1E, 10K7F1D, 11K2F3E Frequency Range, MHz: 406 - 479 Power Rating, Watts: 25W Switchable Variable X N/A Modulation: AMPS TDMA CDMA X OTHER Antenna: Helical X Monopole X Whip X Other Note: For RF Safety test antenna gain taken at the upper range of expected gain (i.e. 6 dBi) and RF Power set to highest nominal power across all channels. Flom Test Labs 3356 N. San Marcos Place, Suite 107 Page 3 of 4 Chandler, Arizona 85225-7176 FCC ID: OHN-B1000-4 (480) 926-3100 phone, fax (480) 926-3598 MFA p0630002, d0640029 Standard Test Conditions and Engineering Practices Except as noted herein, the following conditions and procedures were observed during the testing: In accordance with ANSI C63.4-1992/2003, and unless otherwise indicated in the specific measurement results, the ambient temperature of the actual EUT was maintained within the range of 10° to 40°C (50° to 104 °F) unless the particular equipment requirements specify testing over a different temperature range. Also, unless otherwise indicated, the humidity levels were in the range of 10% to 90% relative humidity. Prior to testing, the EUT was tuned up in accordance with the manufacturer's alignment procedures. All external gain controls were maintained at the position of maximum and/or optimum gain throughout the testing. Measurement results, unless otherwise noted, are worst-case measurements. A2LA “A2LA has accredited M. Flom Associates, Inc. Chandler, AZ for technical competence in the field of Electrical Testing. The accreditation covers the specific tests and types of tests listed on the agreed scope of accreditation. This laboratory meets the requirements of ISO/IEC 17025 – 1999 ‘General Requirements for the Competence of Testing and Calibration Laboratories’ and any additional program requirements in the identified field of testing.” Certificate Number: 2152-01 Flom Test Labs 3356 N. San Marcos Place, Suite 107 Page 4 of 4 Chandler, Arizona 85225-7176 FCC ID: OHN-B1000-4 (480) 926-3100 phone, fax (480) 926-3598 MFA p0630002, d0640029 Specification: FCC: 47 CFR 1.1310 EUT is a Part 90 Base Station, building mounted or tower mounted antenna, >1000W ERP. Routine Evaluation is not required. (47 CFR 1.1310, Table 1) RF Exposure consideration…

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Flom Test Labs. 3356 N. San Marcos Place, Suite 107 Chandler, Arizona 85225-7176 FCC ID: OHN-B1000-4 (480) 926-3100 phone, fax (480) 926-3598 MFA p0630002, d0630032 Date: April 27, 2006 Federal Communications Commission Via: Electronic Filing Attention: Authorization & Evaluation Division Applicant: Digital Wireless Corporation Equipment: DB-1000-4 Digital Station FCC ID: OHN-B1000-4 FCC Rules: 22, 90 and Confidentiality Gentlemen: On behalf of the Applicant, enclosed please find Application Form 731, Engineering Test Report and all pertinent documentation, the whole for approval of the referenced equipment as shown. Filing fees are attached. We trust the same is in order. Should you need any further information, kindly contact the writer who is authorized to act as agent. Sincerely yours, David E. Lee, FCC/IC Compliance Manager enclosure(s) cc: Applicant DEL/del Flom Test Labs. 3356 N. San Marcos Place, Suite 107 Chandler, Arizona 85225-7176 FCC ID: OHN-B1000-4 (480) 926-3100 phone, fax (480) 926-3598 MFA p0630002, d0630032 Transmitter Certification of Model: DB-1000-4 Digital Station FCC ID: OHN-B1000-4 to Federal Communications Commission Rule Parts 22, 90 and Confidentiality Date of report: April 27, 2006 On the Behalf of the Applicant: Digital Wireless Corporation At the Request of: P.O. 16262 Digital Wireless Corporation 696 Moulton Ave, Unit E Los Angeles, CA 90031 Attention of: Brent Jaybush 323-276-5311 Email: [email protected] Supervised by: David E. Lee, FCC/IC Compliance Manager Flom Test Labs. 3356 N. San Marcos Place, Suite 107 Chandler, Arizona 85225-7176 FCC ID: OHN-B1000-4 (480) 926-3100 phone, fax (480) 926-3598 MFA p0630002, d0630032 List of Exhibits (FCC Certification (Transmitters) - Revised 9/28/98) Applicant: Digital Wireless Corporation FCC ID: OHN-B1000-4 By Applicant: 1. Letter of Authorization 2. Confidentiality Request: 0.457 And 0.459 3. Part 90.203(e) & (g) Attestation 4. Identification Drawings, 2.1033(c)(11) Label Location of Label Compliance Statement Location of Compliance Statement 5. Photographs, 2.1033(c)(12) 6. Documentation: 2.1033(c) (3) User Manual (9) Tune Up Info (10) Schematic Diagram (10) Circuit Description Block Diagram Parts List Active Devices 7. MPE Report By M.F.A. Inc.: A. Testimonial & Statement of Certification Flom Test Labs. 3356 N. San Marcos Place, Suite 107 Chandler, Arizona 85225-7176 FCC ID: OHN-B1000-4 (480) 926-3100 phone, fax (480) 926-3598 MFA p0630002, d0630032 The Applicant has been cautioned as to the following: 15.21 Information to the User. The users manual or instruction manual for an intentional radiator shall caution the user that changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. 15.27(a) Special Accessories. Equipment marketed to a consumer must be capable of complying with the necessary regulations in the configuration in which the equipment is marketed. Where special accessories, such as shielded cables and/or special connectors are required to enable an unintentional or intentional radiator to comply with the emission limits in this part, the equipment must be marketed with, i.e. shipped and sold with, those special accessories. However, in lieu of shipping or packaging the special accessories with the unintentional or intentional radiator, the responsible party may employ other methods of ensuring that the special accessories are provided to the consumer, without additional charge. Information detailing any alternative method used to supply the special accessories for a grant of equipment authorization or retained in the verification records, as appropriate. The party responsible for the equipment, as detailed in § 2.909 of this chapter, shall ensure that these special accessories are provided with the equipment. The instruction manual for such devices shall include appropriate instructions on the first page of text concerned with the installation of the device that these special accessories must be used with the device. It is the responsibility of the user to use the needed special accessories supplied with the equipment. Flom Test Labs. 3356 N. San Marcos Place, Suite 107 Chandler, Arizona 85225-7176 FCC ID: OHN-B1000-4 (480) 926-3100 phone, fax (480) 926-3598 MFA p0630002, d0630032 Table of Contents Rule Description Page 2.1033(c)(14) Rule Summary 2 . Standard Test Conditions and Engineering Practices 3 2.1033(c) General Information Required 4 2.1046(a) Carrier Output Power (Conducted) 7 2.1051 Unwanted Emissions (Transmitter Conducted) 9 2.1053(a) Field Strength of Spurious Radiation 12 2.1049(c)(1) Emission Masks (Occupied Bandwidth) 16 90.214 Transient Frequency Behavior 24 2.1055(a)(1) Frequency Stability (Temperature Variation) 28 2.1055(b)(1) Frequency Stability (Voltage Variation) 30 2.202(g) Necessary Bandwidth and Emission Bandwidth 32 Flom Test Labs 3356 North San Marcos Place, Suite 107 Page 1 of 32 Chandler, Arizona 85225-7176 FCC ID: OHN-B1000-4 (480) 926-3100 phone, (480) 926-3598 fax MFA p0630002, d0630032 Required information per ISO/IEC Guide 25-1990, paragraph 13.2: a) Test Report b) Laboratory: (FCC: 31040/SIT) (Canada: IC 2044) M. Flom Associates, Inc. 3356 N. San Marcos Place, Suite 107 Chandler, AZ 85225 c) Report Number: d0630032 d) Client: Digital Wireless Corporation 696 Moulton Ave, Unit E Los Angeles, CA 90031 e) Identification: DB-1000-4 Digital Station FCC ID: OHN-B1000-4 EUT Description: A narrowband repeater specifically designed for DV/IP format digital transmissions used on the i2way network. f) EUT Condition: Not required unless specified in individual tests. g) Report Date: April 27, 2006 EUT Received: March 1, 2006 h, j, k): As indicated in individual tests. i) Sampling method: No sampling procedure used. l) Uncertainty: In accordance with MFA internal quality manual. m) Supervised by: David E. Lee, FCC/IC Compliance Manager n) Results: The results presented in this repor…

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